ESP8266 ESP-12F AC 90-250v / DC 7-30V 4 Channel Wifi Relay Module

ESP8266 quad channel relay development board is equipped with ESP-12F WiFi module, all I/O ports go out and support AC90 250V/DC7-30V/5V and other power supply methods. Suitable for ESP8266 secondary development learning, smart home wireless control and Arduino development environment.

Usage

Programming Interface: ESP8266's GND, RX, TX, 5V are respectively GND, TX, 5V of the external TTL serial port module. RX connects to its 5V, I/O must be connected to GND during download and and then IO and GND need to be disconnected after download.
Relay Output:

NC: The normally closed end shorts to COM before the relay activates and is disconnected after activation.

COM: Common terminal.

NO: Normally open end, relay closed before activation and after activation to COM makes a short circuit.

Technical Specifications

AC Power Supply: 90-250V
DC Power Supply: 7-30V or 5V
Built-in ESP-12F WIFI module with 4MB Flash Memory
All I/O ports and UART port of the WIFI module can be accessed via headers
Onboard AC-DC switching power supply module
ESP-12F supports development tools such as Arduino IDE
Built-in 5V relays controlling AC or DC loads up to 10A
Built-in power indicator, 1 programmable LED and relay indicato
Board dimensions: 93x87mm

Datasheet